SELECT - 台灣PHP聯盟[ Taiwan PHP User Group ] 的最新討論 直到目前交易結束。同樣，如果一個來自其它交易的 UPDATE， DELETE，或者 SELECT FOR UPDATE 已經鎖住了某個或某些選定的行，SELECT FOR UPDATE 將等到那些交易結束， 並且將隨後鎖住並返回更新的行（或者不返回行，如果 ...
SELECT FOR UPDATE - alidabai@yeah的日誌 - 網易博客 SELECT FOR UPDATE,alidabai@yeah的網易博客,技術以人為本，我以技術為本, ... DECLARE /* All the jobs in the Fall to prepare for the Winter */ CURSOR fall_jobs_cur IS SELECT task, expected_hours, tools_required, do_it_yourself_flag FROM ...
Select For update語句淺析-realkid4-ITPUB博客 Select … for update語句是我們經常使用手工加鎖語句。通常情況下，select語句是不會對數據加鎖，妨礙影響其他的DML和DDL操作。同時，在多版本一緻讀機制的支持下，select語句也不會被其他類型語句所阻礙。 &nbs
[MySQL] 使用SELECT ... FOR UPDATE 做交易寫入前的確認 ... 2006年3月4日 - 這二種方式在交易(Transaction) 進行當中SELECT 到同一個資料表時，都必須等待它方交易資料被送交(Commit)後才會執行。而主要的不同 ...
14.2.7.3 SELECT ... FOR UPDATE and SELECT ... - MySQL For index records the search encounters, SELECT ... FOR UPDATE blocks other sessions from doing SELECT ... LOCK IN SHARE MODE or from reading in ...
14.2.5 Locking Reads (SELECT ... FOR UPDATE ... - MySQL If you query data and then insert or update related data within the same transaction, the regular SELECT statement does not give enough protection.
14.6.3.4 SELECT ... FOR UPDATE and SELECT ... - MySQL If you query data and then insert or update related data within the same transaction, the regular SELECT statement does not give enough protection.
14.5.5 Locking Reads (SELECT ... FOR UPDATE ... - MySQL If you query data and then insert or update related data within the same transaction, the regular SELECT statement does not give enough protection.
Oracle/PLSQL: SELECT FOR UPDATE Statement Learn how to use the Oracle/PLSQL SELECT FOR UPDATE statement with syntax and examples. The SELECT FOR UPDATE statement allows you to lock the ...
sql - When to use SELECT ... FOR UPDATE? - Stack Overflow 2012年6月7日 - The only portable way to achieve consistency between rooms and tags and making sure rooms are never returned after they had been deleted is ...
